What is Karuna? This is an Indian Sanskrit concept for compassion in action. It is used in Hinduism and Buddhism. Compassion for others is used to reduce pain and suffering. Karuna is experienced when a person becomes enlightened and they feel empathy for those who are needy. It is used in a type of Reiki healing.
An information leaflet is on this link: http://www.reiki.org/download/holyfirekarunaregform.pdf